How to Choose the Right Size Fire Pit for Your Garden

Match your fire pit diameter to your seating: 600–800mm for a couple or small table, 1000–1200mm for a typical family seating group, and 1500mm for larger entertaining spaces — then leave at least 1 metre of clear space around the entire pit for safety. Here's how to get the sizing right first time.

Size by seating group

• 600–800mm — the Corten Steel Curved Fire Pit at this size suits two to four people seated close around it, ideal for smaller patios.
• 1000–1200mm — the most popular sizes, comfortably seating a family group of four to six with room for a few extra chairs.
• 1500mm — a genuine entertaining centrepiece for larger gardens and bigger gatherings.

The clearance rule

Whatever size you choose, leave a minimum of 1 metre of clear space on all sides between the fire pit and seating, structures, fences or overhanging branches. This protects both people and property from radiant heat and stray sparks, and gives comfortable room to move around the fire.

Matching size to your patio

As a guide, your fire pit plus its clearance zone and seating ring should fit comfortably within your patio or decked area with room to spare — a fire pit that leaves seating awkwardly overhanging the lawn or gravel edge will feel cramped rather than sociable.

Common sizing mistakes

• Buying too small for the intended group size, so guests end up crowding in too close.
• Ignoring clearance and positioning too near fences, planting or timber decking.
• Not considering heat direction — open fire pits radiate in all directions, so think about prevailing wind when choosing a permanent position.

Frequently asked questions

What's the most popular fire pit size?

1000–1200mm — it suits most family gatherings without needing an oversized patio.

Can a fire pit be too big for a small garden?

Yes — in a compact space, an oversized fire pit eats into usable patio area and clearance zones; a chiminea may be a better fit. See our fire pit vs chiminea comparison.

Do I need a heat-proof base under the fire pit?

Yes — always position on paving, stone or gravel rather than directly on grass, decking or artificial turf.

Should I choose based on the fire pit or the seating I already own?

Size around your existing or planned seating group first — that determines how many people need to comfortably gather round.

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